So after a few years of being the GM for my group, one of my players has asked to try running an adventure. And so far, he's better at it than me. He allow more freedom, more options, doesn't bog us down with useless information (I like to do that because, not every lead will be real or truthful) and tracks combat better too.
But….he doesn't know 1/4 of what I do about the setting. He starts us off in transit to a location, on a large, warp-capable merchant ship with a crew of 400, and a security force of 5 men, that will take 6 months to reach our destination. (problems already) And it seems at every turn he manages to screw something up.
I don't know what to do here, usually I'm playing god and can tell him "no, a ship that size would have a crew of 10,000's" or "stasis shell is stationary RELATIVE to something, not a point in space, otherwise i could wreck ships and maybe even planets with it" but he's GM and I'm not. Anyone got any advice here?
Also, my character is an Interrogator and he was fine with that, but doesn't seem to understand the kind of authority that comes with it, neither do the other players. For example, i blew out all the windows in a town first time i used a power, now the blunter sticks to me like glue so i can't "wreck the nice things" wherever we go, despite direct orders to bugger off and let me do some magic.
Last thing, I need some opinions about a course of action taken in-campaign. A very powerful psyker burgled my character's mind (the interrogator who know's stuff even the current GM doesn't) [by powerful, i mean psy-rating 14 and WP of 90, might be a demon, he hasn't said yet] and by burgled, i mean copied all my memories, and gave me some of his own back, then fled in the most terrifying way ever. In reponse I sealed the planet, for once they let me use that interrogator authority. My question is, is sealing the planet enough, or would a psyker that strong, who may or may not be friendly towards the imperium (haven't nailed that down yet) with a copy of an interrogator's brain, as well as numerous other known heretics on the planet and a small, unfriendly xenos race, be warrant for Exterminatus?